The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Application notesIHC-P: 1/100 - 1/500.
Epitope exposure is recommended.
Epitope exposure with citrate buffer will enhance staining.
Not yet tested in other applications.
Optimal dilutions/concentrations should be determined by the end user.
FunctionCleaves linear and branched multiubiquitin polymers with a marked preference for branched polymers. Involved in unanchored 'Lys-48'-linked polyubiquitin disassembly. Binds linear and 'Lys-63'-linked polyubiquitin with a lower affinity. Knock-down of USP5 causes the accumulation of p53/TP53 and an increase in p53/TP53 transcriptional activity because the unanchored polyubiquitin that accumulates is able to compete with ubiquitinated p53/TP53 but not with MDM2 for proteasomal recognition.
Sequence similaritiesBelongs to the peptidase C19 family. Contains 2 UBA domains. Contains 1 UBP-type zinc finger.
DomainThe UBP-type zinc finger domain interacts selectively with an unmodified C-terminus of the proximal ubiquitin. Both UBA domains are involved in polyubiquitin recognition.
Post-translational modificationsThe N-terminus is blocked.
ab84695, at 1/100 dilution, staining USP5 in formalin-fixed, paraffin-embedded human colon carcinoma by Immunohistochemistry using a Red-fluorescent goat anti-rabbit IgG highly cross-adsorbed Hilyte PlusTM 555 secondary antibody at a dilution of 1/100.